L1, Germany Battleship laid down 1916 (Engine 1917)
Displacement:
32,598 t light; 34,119 t standard; 37,200 t normal; 39,665 t full load
Dimensions: Length overall / water x beam x draught
728.35 ft / 721.78 ft x 98.43 ft x 28.22 ft (normal load)
222.00 m / 220.00 m x 30.00 m x 8.60 m
Armament:
8 - 14.96" / 380 mm guns (4x2 guns), 1,674.25lbs / 759.43kg shells, 1916 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1916 Model
Quick firing guns in casemate mounts
on side, all amidships
16 guns in hull casemates - Limited use in heavy seas
8 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1916 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, all raised mounts
Weight of broadside 15,208 lbs / 6,898 kg
Shells per gun, main battery: 90
5 - 23.6" / 600 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.8" / 350 mm 429.79 ft / 131.00 m 9.84 ft / 3.00 m
Ends: 5.51" / 140 mm 219.82 ft / 67.00 m 9.84 ft / 3.00 m
72.18 ft / 22.00 m Unarmoured ends
Upper: 9.84" / 250 mm 429.79 ft / 131.00 m 9.84 ft / 3.00 m
Main Belt covers 92 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.84" / 250 mm 7.87" / 200 mm 13.8" / 350 mm
2nd: 6.69" / 170 mm 6.69" / 170 mm 1.97" / 50 mm
- Armour deck: 3.54" / 90 mm, Conning tower: 15.75" / 400 mm
Machinery:
Coal fired boilers, steam turbines,
Geared drive, 4 shafts, 85,947 shp / 64,116 Kw = 26.00 kts
Range 8,500nm at 13.00 kts
Bunker at max displacement = 5,546 tons (100% coal)
Complement:
1,339 - 1,741
Cost:
£5.274 million / $21.096 million
Distribution of weights at normal displacement:
Armament: 1,901 tons, 5.1 %
Armour: 12,529 tons, 33.7 %
- Belts: 4,834 tons, 13.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3,751 tons, 10.1 %
- Armour Deck: 3,566 tons, 9.6 %
- Conning Tower: 378 tons, 1.0 %
Machinery: 3,466 tons, 9.3 %
Hull, fittings & equipment: 14,703 tons, 39.5 %
Fuel, ammunition & stores: 4,602 tons, 12.4 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
58,786 lbs / 26,665 Kg = 35.1 x 15.0 " / 380 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 5.4 ft / 1.6 m
Roll period: 17.8 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 1.00
Seaboat quality (Average = 1.00): 1.51
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.650
Length to Beam Ratio: 7.33 : 1
'Natural speed' for length: 26.87 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.17 ft / 9.50 m
- Forecastle (20 %): 29.53 ft / 9.00 m
- Mid (69 %): 29.53 ft / 9.00 m (19.69 ft / 6.00 m aft of break)
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 26.61 ft / 8.11 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.9 %
- Above water (accommodation/working, high = better): 196.9 %
Waterplane Area: 54,400 Square feet or 5,054 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 190 lbs/sq ft or 926 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.52
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
Monday, December 18, 2006
The German L1 battleship design from1916
I thought that I would try the German L1 battleship design in Springsharp. I tried to get the parameters as close as I could to what is in Forstmeier and Breyer's book Deutsche Grosskampschipffe 1915-1918. The ship has 8-15in guns and 16-5.9in guns. The dimensions are roughly 728ft x 98.4ft x 28.2ft. The armour belt is about 13.8in at the thickest part. The speed is 26 knots. This is the Springsharp report:
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